I'm new here (57) and inflation (really collapse of US $) is my biggest concern as well. Would you still consider buying Tips as a good strategy?
Yes (as @pb4 predicted), but the answer to your question is not quite as simple as the question.
I agree that the late '70s, early '80s inflation is a real danger. Low probability perhaps, but high impact, and relatively cheap to mitigate (in the language of risk management). If the dollar declines 20%, for example, the arithmetic puts all internationally traded goods up by 25%. Oil, televisions, almost all foods, etc. Now substitution effects and competitive issues will keep the full 25% from being passed along, but the spectre is there.
Hence, TIPS. People will talk about equities being inflation hedges and to an extent this may be true, but the correlation is not instantaneous and the effect on sectors may be dramatically different. Consumer discretionary vs consumer durables, for example. I think people will prioritize eating (and toilet paper). So IMO the argument for equities as an inflation hedge is tenuous at best.
TIPS are the best we have, despite the fact that Uncle taxes us on inflationary gains. The issue, though, that I see is this: Either go home or go big. To add 10% TIPS to a portfolio will have little effect if the big hit comes.
In our case we bought at about your age; we were 58 and 59. Our judgment was that wild inflation was our only serious financial risk in retirement. So we bought very serious six figures in TIPS, completely without regard to overall AA. We felt that a good slug of TIPS plus an equity portfolio that would probably stay noticeably above zero would be a combination that effectively mitigated our risk.
For more ordinary inflation (US historical average is 3.11% IIRC) TIPS will be pretty nice, but IMO one can expect to survive without them. YTM for TIPS in a 3% inflation environment will be higher than the YTM numbers you see quoted (because the interest payment is also inflation adjusted), so they may well outperform regular govvies.
All that said, I have never seen a post from anyone on this board who has anything like 100% of his/her fixed income tranche in TIPS as we do. So I suppose you might conclude something from that.
I think @pb4 is at zero TIPS. He seems to have a different view of the inflation risk ahead.